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Finding the Fourth Proportional to 461,636.32, 693,672.18 and 248,561.80

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Solution

The fourth proportional to 461,636.32, 693,672.18 and 248,561.80 is: 373,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,636.32 : 693,672.18 = 248,561.80 : x
  2. Step 2: Convert to fraction form
    461,636.32/693,672.18 = 248,561.80/x
  3. Step 3: Cross multiply
    461,636.32x = 693,672.18 × 248,561.80
  4. Step 4: Simplify right side
    461,636.32x = 172,420,405,670.72
  5. Step 5: Solve for x
    x = 172,420,405,670.72/461,636.32
  6. Step 6: Final answer
    x = 373,498.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.